Eaton EHC3040 - 40 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Eaton EHC3040 — a dependable 40 A, 480 V, 3‑pole bolt‑on molded case circuit breaker designed to shield panelboards and load centers from overcurrent and short‑circuit events. Built for demanding electrical environments, it delivers reliable protection with a secure, vibration‑resistant bus connection that keeps critical circuits protected even in challenging installations.

• Secure bolt‑on mounting: Provides a rigid, vibration‑resistant connection to the bus, reducing loosening and ensuring consistent electrical performance in busy panels.
• Thermal‑magnetic trip unit: Combines thermal overload sensing with immediate magnetic response for fast, stable trip performance across varying loads and fault conditions.
• 3‑pole configuration: Ideal for three‑phase systems common in commercial and light industrial applications, ensuring coordinated protection across all phases.
• OEM compatibility: Designed to pair with matching Eaton OEM load centers and panelboards, facilitating straightforward replacement and streamlined stocking.
• Targeted protection: 40 A rating shields branch circuits and downstream equipment while minimizing nuisance trips for typical commercial loads.
• Versatile applications: Suitable for residential, commercial, and light industrial environments where reliable branch‑circuit overcurrent and short‑circuit protection is required.

Technical snapshot

• Manufacturer: Eaton
• Part Number: EHC3040
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage Rating: 40 A
• Voltage Rating: 480 V
• Number of Poles: 3
• Mounting Style: Bolt‑on
• Application: Branch circuit overcurrent and short‑circuit protection

Practical use tips to maximize performance:

• Confirm the EHC3040 is compatible with your panelboard model and follow the manufacturer’s torque specifications for bolt‑on mounting to ensure a solid, long‑lasting connection.
• In new installations, coordinate this 40 A breaker with upstream protection to create a balanced, safe electrical protection scheme across all phases.
• When replacing an existing breaker, verify the part number (EHC3040) matches the original to maintain OEM compatibility and predictable trip behavior.
• Keep in mind the 480 V rating is intended for appropriate 480‑V systems; on lower voltage networks, verify suitability before installation.

Choose the Eaton EHC3040 for a robust, purpose‑built solution that blends secure mounting, precise protection, and OEM compatibility — delivering dependable branch circuit protection for panelboards and load centers across residential, commercial, and light industrial settings.